1899 May Born California, USA
1900 Census at Branciforte, Santa Cruz, California
1902 To Canada.
1914 Joins Royal Canadian Navy as a Cadet.
1917 Feb 17 Commissioned Midshipman.
RNCC Mid [2.2.17] RCN, HMS LEVIATHAN 1917, HMS CARANARVON 1917, HMS ROXBURGH 1917, HMS MINOTAUR Cr, (1.2.18-?) HMS CANADA 1918, S/Lt [3.5.19] Retired 1919,
1919 Jun 3. Promoted Sub.Lt in RCN
1921 Joined ADRIC with service no 1755, Posted to C Coy
1921 Apr 2. Posted to Q Coy
1921 Aug 5. Permitted to resign on compassionate grounds
1921 Oct 11. Arrives back in Canada from UK
1939 Sep 2. Mobilized , Lt(Temp RCN, A/LCdr(Temp) 1940, LCdr(Temp) [1.1.41] A/Cdr(Temp) 1941, Cdr(Temp) [1.7.42] A/Capt(Temp)(WHA) [1944?] , Capt [30.9.52]
1941 Oct 1. Commanding Officer of Signals School at St. Hyacinthe, Quebec 1 Oct 1941 to 1945. The new signal school was commissioned as HMCS St. Hyacinthe under the command of commander A.P. Musgrave, RCN, the former commander at the Halifax Exhibition Grounds signal school. Commander Musgrave was not a signals specialist himself, but he gave the school energetic and efficient administration. His career began when he joined the RCN as a cadet in 1914. He was occupied with civilian life from 1920 to September 1939 when he rejoined the RCN as a Lieutenant. In September 1940 he was appointed to the signal school in Halifax, and in 1941 moved with it to St. Hyacinthe. Later he was promoted to Acting Captain on 15 June 1943. During his lengthy stay, which eventually ended 20 February 1946, Captain Musgrave gained the respect and admiration of all naval communicators for his unceasing efforts on their behalf. After some further post war service, he took up his retirement in Vancouver, BC.
1945 Jan 5. OBE. "For outstanding ability in organizing the development, growth and training of His Majesty's Canadian Signal School at St. Hyacinthe, Quebec. His success in establishing cordial relations with the local civil population has been exceptional."
1949 May 1. . Capt. A P. Musgrave, who for the past three years has been Director of Sea Cadets at Naval Headquarters, will command the R.C.N. 's New Entry Training Establishment, H.M.C.S. Cornwallis.
14 Jun 1985 Jun 14 . Died in Victoria, BC, Canada